CN206687811U - Utilize the hand warmer for control heating of blowing - Google Patents
Utilize the hand warmer for control heating of blowing Download PDFInfo
- Publication number
- CN206687811U CN206687811U CN201621044651.1U CN201621044651U CN206687811U CN 206687811 U CN206687811 U CN 206687811U CN 201621044651 U CN201621044651 U CN 201621044651U CN 206687811 U CN206687811 U CN 206687811U
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- CN
- China
- Prior art keywords
- circuit
- hand warmer
- blowing
- chip
- microphone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of hand warmer using control heating of blowing, the hand warmer includes body, heater, governor circuit and blows for sensing and produce the microphone of voltage signal, MCU is provided with the governor circuit, stomata is offered on the surface of the body, the microphone is arranged in body and is located at stomata position, the heater and MCU are also installed in body, and air-flow is received after air passing hole by microphone.The utility model not only realizes the febrile state control of hand warmer, and can increase the entertaining using hand warmer, so as to meet the diversified needs of consumer.
Description
Technical field
It the utility model is related to a kind of hand warmer, more particularly to a kind of hand warmer using control heating of blowing.
Background technology
With the popularization of digital product, the too fast problem for having become everybody and commonly encountering of digital product electric quantity consumption, move
Dynamic power supply arises at the historic moment.Simultaneously in the winter of cold, facing the duration with hand warmer pocket warm hand and fall short of, service life is short, into
This too high, inadequate technology sense of outward appearance, the shortcomings of product function is single.
Hand warmer in the market, its structure are that fever tablet is placed in heater mostly, and after opening heating, energization makes
Heater element reaches certain temperature, warm to provide, and typical temperature shelves are only fixed one grade or two grades.This hand warmer,
The switch of circuit can be all provided with fuselage, to control the heating of heating plate and stopping, when in use, it is necessary to manual opening control
System switch, heat to warm oneself, but in many cases, people forget to close after opening controlling switch, are constantly in heating plate
Heated condition, power supply is wasted, especially for the hand warmer using rechargeable battery, battery can be made to discharge always and shorten battery use
Time and life-span.The temperature shelves of this hand warmer are more dull simultaneously, can not meet the diversified demand of consumer；It is and this
Hand warmer uses too dull, it is impossible to realizes man-machine interaction well.
Utility model content
For weak point present in above-mentioned technology, the utility model provides a kind of vdiverse in function, energy-saving consumption and interest
The strong hand warmer using control heating of blowing of taste.
To achieve the above object, the utility model provides a kind of hand warmer using control heating of blowing, including body, hair
Hot body, governor circuit and for sense blow and produce the microphone of voltage signal, MCU, institute are provided with the governor circuit
State and stomata is offered on the surface of body, the microphone is arranged in body and is located at stomata position, the heater and MCU
Also it is installed in body, air-flow is received after air passing hole by microphone.
Wherein, the hand warmer also includes battery, battery core protection circuit and the heating control circuit being placed in body, the electricity
Pond is electrically connected by battery core protection circuit with MCU, and battery provides power supply by battery core protection circuit for MCU；The battery core is protected
Protection circuit and MCU are electrically connected by heating control circuit with heater.
Wherein, the hand warmer also includes the charging circuit, discharge circuit and work shape body indicating circuit being placed in body,
The body is provided with electric discharge interface USB, charging inlet mic USB and working station indicator, the input difference of the MCU
Electrically connected with charging circuit, discharge circuit and work shape body indicating circuit, and charging circuit connection charging inlet mic
USB, the discharge circuit connection electric discharge interface USB, the work shape body indicating circuit connect working station indicator.
Wherein, the body includes metal shell and is socketed in the plastic cement center of metal shell, the metal shell side
Switch key is provided with face, the stomata is arranged between working station indicator and electric discharge interface USB.
Wherein, the heating control circuit includes NTC thermistor and the 3rd chip, and described NTC thermistor one end connects
Connect the power voltage terminal of the 3rd chip, the other end by the 12nd electric capacity to ground connect simultaneously the 15th resistance to, the 12nd
Electric capacity and the electrical connection of the 3rd chip input；One end of heater is connected with anode, the other end connection field effect of heater
Ying Guan, FET and the 3rd chip output electrical connection, while FET with electrically connect.
Wherein, the battery core protection circuit includes the second chip, and the positive pole of the battery core passes through the 11st resistance access the
Two chips, the negative pole of the battery are connected by the 35th electric capacity with second resistance, and the negative pole of battery is also directly accessed
Two chips.
Wherein, the working station indicator includes four indication LED indicator lamps, and the working state indicating circuit includes
6th resistance, described 6th resistance one end connect the power voltage terminal of the 3rd chip, the other end respectively with the first LED light,
Second LED light, the 3rd LED light, the 4th LED light electrical connection, the first LED light, the second LED light,
The output end of 3rd LED light, the 4th LED light simultaneously respectively with the 3rd chip electrically connects.
The beneficial effects of the utility model are：Compared with prior art, it is provided by the utility model to utilize control hair of blowing
The hand warmer of heat, stomata is provided with the hand warmer and gas can be sensed and produce the microphone of voltage signal, needed
Blown when use or the microphone of hand warmer is received airflow signal by other forms, be then sent to
MCU, the working condition of heater is controlled by MCU；The airflow signal that the structure can receive according to microphone through air passing hole
Strong and weak or airflow signal time length controls the size of the height of the heating temp of this product, heating power.Above-mentioned knot
The improvement of structure, not only realizes the febrile state control of hand warmer, and can increase the entertaining using hand warmer, so as to meet to disappear
The variation needs of the person of expense.
Brief description of the drawings
Fig. 1 is the first angle structural representation of the hand warmer of the present utility model using control heating of blowing；
Fig. 2 is the second angle structural representation of the hand warmer of the present utility model using control heating of blowing；
Fig. 3 is working envelope figure of the present utility model；
Fig. 4 is the fundamental diagram of heating control circuit in the utility model；
Fig. 5 is the fundamental diagram of battery core protection circuit in the utility model；
Fig. 6 is the fundamental diagram of working state indicating circuit in the utility model.
Main element symbol description is as follows：
1st, governor circuit
10th, body 11, heater
12nd, MCU 13, microphone
14th, battery 15, battery core protection circuit
16th, heating control circuit 17, charging circuit
18th, discharge circuit 19, work shape body indicating circuit
20th, discharge interface USB 21, charging inlet mic USB
22nd, working station indicator 23, switch key
101st, stomata 102, metal shell
103rd, plastic cement center.
Embodiment
In order to more clearly state the utility model, the utility model is further described below in conjunction with the accompanying drawings.
Refer to Fig. 1-3, the hand warmer of the present utility model using control heating of blowing, including body 10, heater 11,
Governor circuit 1 and for induction air flow and the microphone 13 of voltage signal is produced, MCU12, body 10 are provided with governor circuit 1
Surface on offer stomata 101, microphone 13 is arranged in body 10 and is located at the position of stomata 101, heater 11 and MCU12
Also it is installed in body 10；Air-flow is received after air passing hole 101 by microphone 13.It can be received according to microphone through air passing hole
To the power of airflow signal or the time length of airflow signal control the height of the heating temp of hand warmer, heating power
Size.
Compared to the situation of prior art, the hand warmer provided by the utility model using control heating of blowing, the warm hand
Stomata 101 is provided with treasured and air-flow can be sensed and produce the microphone 13 of voltage signal, when needing to use
Blown or the microphone 13 of hand warmer is received airflow signal by other forms, be then sent to MCU12, by
MCU12 controls the working condition of heater 11；The airflow signal that the structure can receive according to microphone through air passing hole it is strong
Weak or airflow signal time length controls the size of the height of the heating temp of this product, heating power.Said structure
Improvement, not only realize hand warmer febrile state control, and can increase use hand warmer entertaining, so as to meet to consume
The variation needs of person.
In the present embodiment, the hand warmer also includes battery 14, battery core protection circuit 15 and the heating being placed in body 10
Control circuit 16, battery 14 are electrically connected by battery core protection circuit 15 with MCU12, and battery 14 is by battery core protection circuit 15
MCU12 provides power supply；Battery core protection circuit 15 and MCU12 are electrically connected by heating control circuit 16 with heater 11.This is warm
Hand treasured also includes the charging circuit 17, discharge circuit 18 and work shape body indicating circuit 19 being placed in body 10, is set on body 10
Have electric discharge interface USB20, charging inlet mic USB21 and a working station indicator 22, MCU12 input respectively with charging electricity
Road 17, discharge circuit 18 and work shape body indicating circuit 19 electrically connect, and charging circuit 17 connects charging inlet mic USB21,
The connection electric discharge interface USB20 of discharge circuit 18, work shape body indicating circuit 19 connect working station indicator 22.Body 10 includes
Metal shell 102 and the plastic cement center 103 for being socketed in metal shell 102, switch key is provided with the one side of metal shell 102
23, stomata 101 is arranged between working station indicator 22 and electric discharge interface USB20.
Heater generates heat after being powered by heating control circuit, and heating control circuit can supervise to the temperature of heater
Control and regulation.Allow fever tablet no longer to be generated heat when temperature is high, fever tablet is opened heating so that fever tablet
Temperature keeps stable, so as to ensure that the temperature of hand warmer is controllable, stable.The change that microphone receives air-flow can produce
Corresponding voltage signal, MCU receive the voltage signal of microphone and then adjust the working condition of heating control circuit, so as to
Adjust the temperature of opening and closing and the heating of febrile state.Microphone is in position corresponding to stomata, for sensing air-flow
Signal simultaneously produces corresponding voltage signal, when people blows against stomata or microphone is received air-flow letter by other means
Number when, a voltage signal can be produced in microphone, voltage signal is sent to MCU, and MCU opens heating control circuit, according to gas
Flow the height of the corresponding adjustment heating temp of signal.Battery is that MCU etc. provides power supply by battery core protection circuit, when to warm hand
During treasured charging, external power source charges the battery through overcharge circuit, battery core protection circuit.When needing externally output electricity, electricity
Pond electricity externally discharges by discharge circuit.Here charging circuit and discharge circuit is all circuit conventional on the market, itself
Hand warmer is charged and discharged on existing hand warmer, all there is charging circuit and discharge circuit.
Voltage signal caused by the airflow signal that the utility model is received using the microphone in product generates heat to control
The febrile state of body, simulation winter is rubbed hands to warm oneself with breathing out, more interesting；It is safer with temperature control design protection；Together
When the utility model the hand warmer can be made to be maintained at different temperature shelves work according to the airflow signal difference received, so as to
Meet the diversified needs of consumer.
Further referring to Fig. 4, heating control circuit 16 includes NTC thermistor RT1 and the 3rd chip U3, the 3rd chip
Model BJ8M601A, MCU model BJ8M601A.NTC thermistor one end connects the 3rd chip U3 supply voltage
End, the other end connect the 15th resistance R15 to ground, the 12nd electric capacity C12 and the 3rd core simultaneously by the 12nd electric capacity C12 to ground
Piece U3 inputs electrically connect, and one end of heater is connected with anode, the other end connection FET Q1 of heater, field effect
Should manage with the 3rd chip output electrically connect, while FET with electrically connect.When the temperature varies, NTC temperature-sensitives electricity
Respective change can also occur for resistance resistance, and now the 15th ohmically voltage can also change.So when temperature changes
When, the 15th ohmically voltage that the 3rd chip detects can also change, and the 3rd chip can be according to the tenth detected
Voltage signal judges the height of temperature on five resistance, and the 3rd chip output high level, passes through FET Q1 when the temperature is low
Make heater heating power.When temperature is high, the 3rd chip exports low level, closes FET Q1, and heater power-off is not sent out
Heat, so circulation, so as to ensure that hand warmer is constantly in the state of temperature of setting.3rd chip detects according to its 9th pin
The length of voltage signal size and time of feedback set product different heating temp shelves and heating power accordingly.Together
When status indicator lamp is produced corresponding instruction.
The utility model has both of which to enter febrile state;
First, long-press button 3S under holding state, low-temperature condition is now in into glow mode（43 ° of ± 2 ° of LED1 lamps are slow
Dodge）.Button is clicked under glow mode and enters high temperature exothermic state（47 ° of ± 2 ° of LED1 lamp quick flashings）In high-grade glow mode
Under, click button and enter low-grade glow mode, circulated with this.Long-press button 3S exits febrile state under glow mode.
2nd, blown under holding state with appropriate strength and enter long-press button 3S under glow mode febrile state more than 2S
Exit glow mode.Blown under holding state with appropriate strength and exceed 2S, the other lamps of the LED1 flickers now temperature that do not work is
45 °, current electric quantity such as will be shown without blowing action working station indicator in 4 seconds, if any air blowing, LED1 flickers, LED2 is bright, its
47 ° of brightness temperature such as will not show current electric quantity to its lamp in 4 seconds without blowing action, working station indicator.Air blowing LED1 dodges again
It is bright, the bright other lamps of the bright LED3 of LED2 not 49 DEG C of brightness temperature.Such as current electric quantity will be shown in 4 seconds without blowing action LED.Blow for 4th time
Gas LED1 flashes bright 51 ° of the LED4 brightness temperatures of the bright LED3 of LED2.It will show that current electric quantity owns without blowing action LED such as in 4 seconds
Gone out 45 ° of temperature after lamp is bright as blown to will turn into LED1 and flash all lamps again, as in 4 seconds without blowing action working station indicator
Display current electric quantity is so circulated.Under glow mode febrile state will be automatically exited from if any charge or discharge action.
Further referring to Fig. 5, battery core protection circuit 15 includes the second chip U2, and the positive pole of battery core passes through the 11st resistance
R11 accesses the second chip U2, and the negative pole of battery is connected by the 35th electric capacity C35 with the 35th resistance R35, and battery
Negative pole is also directly accessed the second chip U2.Second chip U2 model XB8089A, the second chip U2 detect excessively stream, overvoltage,
Battery core BATA- and DGND connection can be disconnected during the abnormal conditions such as short circuit so that battery core and pcb board are disconnected so as to protect electricity
Core.
Further referring to Fig. 6, working station indicator 22 includes four LED lights, working state indicating circuit 19
Including the 6th resistance R6, the 6th resistance one end connects the power voltage terminal of the 3rd chip, the other end respectively with the first LED light
LED1, the second LED light LED2, the 3rd LED light LED3, the 4th LED light LED4 electrical connections, the first LED instructions
The output end of lamp, the second LED light, the 3rd LED light, the 4th LED light simultaneously respectively with the 3rd chip electrically connects.
Then 3rd chip U3 makes working condition indicate different working conditions according to the working condition of hand warmer.
Disclosed above is only several specific embodiments of the present utility model, but the utility model is not limited to this,
The changes that any person skilled in the art can think of should all fall into the scope of protection of the utility model.
Claims (8)
1. a kind of hand warmer using control heating of blowing, it is characterised in that including body, heater, governor circuit and be used for
Sensing is blown and produces the microphone of voltage signal, and MCU is provided with the governor circuit, is offered on the surface of the body
Stomata, the microphone are arranged in body and are located at stomata position, and the heater and MCU are also installed in body, gas
Received after flowing through air passing hole by microphone.
2. the hand warmer according to claim 1 using control heating of blowing, it is characterised in that the hand warmer also includes putting
In the battery in body, battery core protection circuit and heating control circuit, the battery is electrically connected by battery core protection circuit with MCU
Connect, and battery provides power supply by battery core protection circuit for MCU；The battery core protection circuit and MCU pass through the control electricity that generates heat
Road electrically connects with heater.
3. the hand warmer according to claim 1 using control heating of blowing, it is characterised in that the hand warmer also includes putting
In the charging circuit in body, discharge circuit and work shape body indicating circuit, the body is provided with electric discharge interface USB, charging
Interface micUSB and working station indicator, the output end of the MCU refer to charging circuit, discharge circuit and work shape body respectively
Show that circuit electrically connects, and charging circuit connection charging inlet mic USB, the discharge circuit connect electric discharge interface USB, institute
State work shape body indicating circuit connection working station indicator.
4. the hand warmer according to claim 3 using control heating of blowing, it is characterised in that the body includes metal
Shell and the plastic cement center for being socketed in metal shell, switch key are provided with the metal shell one side, the stomata is set
Put between working station indicator and electric discharge interface USB.
5. the hand warmer according to claim 2 using control heating of blowing, it is characterised in that the heating control circuit
Including NTC thermistor and the 3rd chip, described NTC thermistor one end connects the power voltage terminal of the 3rd chip, the other end
15th resistance is connected to ground, the 12nd electric capacity and the electrical connection of the 3rd chip input by the 12nd electric capacity to ground simultaneously；Hair
One end of hot body is connected with anode, the other end connection FET of heater, FET and the 3rd chip output
Electrical connection, at the same FET with electrically connect.
6. the hand warmer according to claim 2 using control heating of blowing, it is characterised in that the battery core protection circuit
Including the second chip, the positive pole of the battery core accesses the second chip by the 11st resistance, and the negative pole of the battery passes through the 3rd
15 electric capacity are connected with second resistance, and the negative pole of battery is also directly accessed the second chip.
7. the hand warmer according to claim 3 using control heating of blowing, it is characterised in that the working condition instruction
Lamp includes four indication LED indicator lamps, and the working state indicating circuit includes the 6th resistance, the 6th resistance one end connection
The power voltage terminal of 3rd chip, the other end respectively with the first LED light, the second LED light, the 3rd LED light,
Four LED lights electrically connect, and the first LED light, the second LED light, the 3rd LED light, the 4th LED light are simultaneously
The output end with the 3rd chip electrically connects respectively.
8. the hand warmer according to claim 1 using control heating of blowing, it is characterised in that be provided with the hand warmer
Stomata and gas can be sensed and produce the microphone of relevant voltage signal, be made when the stomata to the hand warmer carries out air blowing
The microphone of warm hand receives airflow signal, and microphone can produce corresponding voltage signal；MCU detects corresponding voltage letter
Number, then accordingly control heater working condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621044651.1U CN206687811U (en) | 2016-09-09 | 2016-09-09 | Utilize the hand warmer for control heating of blowing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621044651.1U CN206687811U (en) | 2016-09-09 | 2016-09-09 | Utilize the hand warmer for control heating of blowing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206687811U true CN206687811U (en) | 2017-12-01 |
Family
ID=60438556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621044651.1U Expired - Fee Related CN206687811U (en) | 2016-09-09 | 2016-09-09 | Utilize the hand warmer for control heating of blowing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206687811U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112315646A (en) * | 2020-11-03 | 2021-02-05 | 刘林 | Intelligent hand warmer |
-
2016
- 2016-09-09 CN CN201621044651.1U patent/CN206687811U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112315646A (en) * | 2020-11-03 | 2021-02-05 | 刘林 | Intelligent hand warmer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171201 Termination date: 20200909 |